Lema-Aguirre, A., E. Basantes-Morales, and J. Pantoja-Guamán. “Barley (Hordeum Vulgare L.) Yield With Normal and Coated Urea in Pintag, Quito, Ecuador.”. Agronomía Mesoamericana, Vol. 28, no. 1, Dec. 2016, pp. 97-12, doi:10.15517/am.v28i1.22705.